Ramp Settings [Par2 → Ramu/ Ramd/ Runt] - Autonics TK4S User Manual

6.2.3 Ramp Settings [PAR2 → RAMU/ RAMD/ rUNT]


Parameter
Setting
Group
PAR2
Ramp depending on operation status
All operations
OPEN, HHHH, LLLL, Auto-tuning, Switching from Auto
to Manual, Switching from Run to Stop
OPEN, HHHH, LLLL, After Auto-tuning completed, PV
= SV
Power On, SV Change, Switching from Stop to Run,
Switching from Manual to Auto, Ramp Rate Change
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Ramp is a feature used to configure the slope toward SV (Setting Value). The feature
limits change rate of SV and thereby restricts sudden temperature changes (increase
and decrease) in the control subject.
Ramp is commonly used in applications where rapid temperature changes (increase
and decrease) could impact negatively on the control subject.
Settings for RAMP-Up Change Rate.
RAMU
Settings for RAMP-Down Change Rate.
RAMD
Settings for RAMP Time Unit.
R.UNT
Paramet
er
000 to 999 (Temperature H, analog), 000.0
RAMU
to 999.9 (Temperature L)
000 to 999 (Temperature H, analog), 000.0
RAMD
to 999.9 (Temperature L)
SEC (seconds), MIN (minutes), HOUR
R.UNT
(hours)
Activating the ramp feature when the ramp is not in operation limits the

change rate of SV (Setting Value) based on PV (Present Value).
Changing SV or ramp parameters while the ramp is in operation limits
the change rate of SV based on SV at the point of the change.
Control will be carried out based on changed SV (hereinafter referred

to as RAMP SV) - changed by preset change rate (slope). RAMP-Up
Change Rate and RAMP-Down Change Rate can be configured
independently.
Alarm operation during RAMP will be made based on final SV.

Setting the rate of ramp change to 0 deactivates the ramp feature.

If the ramp feature has been activated, RAMP SV will be displayed on

SV display part.
Operation Status
6 Parameter Settings and Functions
Description
Setting Range
Ramp Up/Down
When it is 0.
Irrespective of
conditions.
Irrespective of
conditions.
When it is not 0.
Factory
Unit
Default
000
000
-
MIN
Ramp
Inactive
Inactive
Inactive
Active
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